Keep extension and IP check alive after set to hibernation

build.sh

@@ -31,8 +31,10 @@ packageChromeFunction() {
 }
 
 prepareFirefoxFunction() {
-    echo "Preparing manifest.json for Firefox"
-    sed -i -e '14d;16d;17d' ./dev/manifest.json
+    #echo "Preparing manifest.json for Firefox"
+    echo "Firefox is currently not supported. It uses a different manifest.json file. Use an older version of the extension for Firefox."
+    exit 1
+    #sed -i -e '14d;16d;17d' ./dev/manifest.json
     cd ./dev/
     zip -qr firefox.zip ./*
     cd ..

js/main.js

@@ -125,4 +125,47 @@ setBadgeColor('#000000');
 setBadgeTextColor('#ffffff');
 setBadgeText('...');
 fetchGeoLocation();
-let intval = setInterval(fetchGeoLocation, checkInterval);
+
+let intval;
+
+function startInterval() {
+    if (!intval) {
+        intval = setInterval(fetchGeoLocation, checkInterval);
+    }
+}
+
+function stopInterval() {
+    if (intval) {
+        clearInterval(intval);
+        intval = null;
+    }
+}
+
+chrome.alarms.onAlarm.addListener((alarm) => {
+    console.log('alarm fired');
+    console.log(alarm);
+    if (alarm.name === 'checkIntervalAlarm') {
+        stopInterval();
+        startInterval();
+    }
+});
+
+chrome.runtime.onSuspend.addListener(function () {
+    console.log('unloading');
+    stopInterval();
+});
+
+
+chrome.alarms.onAlarm.addListener((alarm) => {
+    console.log('alarm fired');
+    if (alarm.name === 'checkIntervalAlarm') {
+        stopInterval();
+        startInterval();
+    }
+});
+
+chrome.runtime.onInstalled.addListener(() => {
+    console.log('installed');
+    startInterval();
+    chrome.alarms.create('checkIntervalAlarm', { periodInMinutes: 1 * 60000 });
+});

manifest.json

@@ -1,6 +1,6 @@
 {
   "name": "IP Address & Geolocation",
-  "version": "3.0.1",
+  "version": "3.0.2",
   "manifest_version": 3,
   "icons": {
     "16": "img/icon16.png",
@@ -21,7 +21,8 @@
   },
   "permissions": [
     "notifications",
-    "storage"
+    "storage",
+    "alarms"
   ],
   "minimum_chrome_version": "88",
   "options_ui": {